Add and remove dependencies

Ende manages dependencies through your project’s ende.json import map. The ende add and ende remove commands edit it for you, and ende install with a package argument does the same.

Adding packages

Use the jsr: prefix for JSR packages:

$ ende add jsr:@ende/path jsr:@ende/fmt
Add jsr:@ende/path@^2026.10.15
Add jsr:@ende/fmt@^2026.10.15

ende install jsr:@ende/path is equivalent: it records the dependency the same way and installs everything in one step.

Both end up in the imports map of ende.json, with a caret range:

{
  "imports": {
    "@ende/fmt": "jsr:@ende/fmt@^2026.10.15",
    "@ende/path": "jsr:@ende/path@^2026.10.15"
  }
}

Import them by their bare name anywhere in the project:

import { join } from "@ende/path";
import { green } from "@ende/fmt/colors";

To pin an exact version instead of a caret range, pass --save-exact. To request a specific version, spell it out:

ende add --save-exact jsr:@ende/[email protected]

Aliasing a package

The import map maps any name you like to any specifier. Aliases are also the way to use two versions of one package side by side:

{
  "imports": {
    "@ende/path": "jsr:@ende/path@^2026.10.15",
    "path-old": "jsr:@ende/[email protected]"
  }
}

For overriding a dependency with a local copy, or remapping your own imports, see Overriding dependencies and Re-map import paths.

Removing packages

ende remove deletes the entry by its import-map name (not the package name, if they differ):

$ ende remove @ende/fmt
Removed @ende/fmt

The lockfile keeps records of removed packages until you run ende install again; see the lockfile documentation for how ende.lock tracks all of this.